One of the most amazing green roofs in the world is at the School of Art, Design and Media at Nanyang Technological University in Singapore. I like that this building invites you to walk onto its' roof as if it were a hill.
Designed by ArqDonini, this awesome jungle house is built in São Sebastião (Brazil), just from Barra do Una Beach. How ridiculously amazing would this place be. It is like one huge modern jungle gym! We found this one here.